Features: 1.Unique shape design can reduce the resistance of the intake air of the engine, while increasing the amount of air intake per unit time and volume efficiency when the engine is running. 2.Enhances the intake air flow, filters the air impurities, and makes your engine breathe more smoothly. 3.Will prevent the suspended dust in the air from being sucked into the cylinder, to reduce the wear of the piston group and the cylinder. 4.Can be installed in front of the carburetor or the intake pipe to filter out dust and sand in the air, which can guarantee sufficient and clean air in the cylinder. 5.Has long service life of 50000km, and universally suitable for most motorcycles. Specification: Item Type: Filter _x000D_ Condition: Brand new_x000D_ Material: Plastic + non-woven_x000D_ Main Color: Red _x000D_ Optional Size: Approx. 51mm/2.01in, 55mm/2.17in, 60mm/2.36in_x000D_ Fitment: _x000D_ Fit for Honda _x000D_ Fit for Suzuki _x000D_ Fit for Yamaha _x000D_ Fit for Kawasaki, etc._x000D_ And fit any motorcycles with the appropriate size. Note: It just need to be cleaned every 4000km.